package cn.tedu._05weibo.controller;

import cn.tedu._05weibo.base.Utils.CacheUtil;
import cn.tedu._05weibo.base.response.JsonResult;
import cn.tedu._05weibo.base.response.StatusCode;
import cn.tedu._05weibo.mapper.WeiboMapper;
import cn.tedu._05weibo.pojo.bto.WeiboDTO;
import cn.tedu._05weibo.pojo.entity.Weibo;
import cn.tedu._05weibo.pojo.vo.UserVO;
import cn.tedu._05weibo.pojo.vo.WeiboDetailVo;
import cn.tedu._05weibo.pojo.vo.WeiboIndexVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.hibernate.validator.constraints.Range;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;
import springfox.documentation.annotations.ApiIgnore;

import javax.servlet.http.HttpSession;
import java.io.Serializable;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;

@Api(tags = "02.微博模块")
@Slf4j
@Validated
@RestController
@RequestMapping("/v1/weibo/")
public class WeiboController {

    @Autowired
    private WeiboMapper weiboMapper;

    /*//装配RedisTemplate
    @Autowired
    private RedisTemplate<String , Serializable> redisTemplate;
    */

    @Autowired
    private CacheUtil cacheUtil;

    // 发布微博功能
    @ApiOperation(value = "发布微博功能")
    @PostMapping("insert")
    public JsonResult insert(@RequestBody WeiboDTO weiboDTO, @ApiIgnore HttpSession session) {
        UserVO userVO = (UserVO) session.getAttribute("user");
        Weibo weibo = new Weibo();
        BeanUtils.copyProperties(weiboDTO, weibo);
        weibo.setCreated(new Date());
        weibo.setUserId(userVO.getId());
        weiboMapper.insert(weibo);

        return JsonResult.ok();
    }

    // 微博首页列表功能
    @ApiOperation(value = "微博首页功能")
    @GetMapping("selectIndex")
    public JsonResult selectIndex() {
        Serializable indexCache = cacheUtil.get("index_cache");
        if (indexCache != null){
            System.out.println("数据来自缓存Redis");
            return JsonResult.ok(indexCache);
        }

        List<WeiboIndexVO> weiboIndexVOS = weiboMapper.selectIndex();
//        redisTemplate.opsForValue().set("index_cache", (Serializable) weiboIndexVOS);
        cacheUtil.setExpire("index_cache", (Serializable) weiboIndexVOS,30);
        System.out.println("数据来自数据库MySQL");

        return JsonResult.ok(weiboIndexVOS);
    }

    // 微博详情功能
    @ApiOperation(value = "微博详情功能")
    @GetMapping("selectById")
    @ApiImplicitParams(value = {
            @ApiImplicitParam(name = "id", value = "微博编号", required = true, dataType = "long"),
            @ApiImplicitParam(name = "username", value = "用户名", required = true, dataType = "string")
    })

    public JsonResult selectById(@Range(min = 200,max = 300,message = "微博编号必须在200~300之间") @RequestParam Long id, String username) {
        if (id<0){
            throw new IllegalArgumentException("微博编号不能小于0");
        }
        log.debug("id = {}",id);
        WeiboDetailVo weiboDetailVo = weiboMapper.selectById(id);
        return JsonResult.ok(weiboDetailVo);
    }


}
